Type-writing machine.



G. msm. TYPE WRITING MACHINE. APPLICATION FlLED lAN.6,`1917.

WITNEEIEEE.

Patented Apr. 2, 191sn G; A.l sus. TYPE WRITING MACHINE. APPLICATION FILED IAN'G. 1917.

1,261,304. I Patented Apr. 2,1918.,y

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UNTE Vsalaires PATENT OFFICE.

GEORGE A. SEIB, F ILION, NEW YORK, ASSIGNOR T0 REMINGTON TYPEWRITER COMPANY, OF ILION, NEW YORK, A CORPORATION 0F NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Application filed January G, 1917. Serial No. 140,919.

. To aZZ whom it may concern.'

Be it known that I, GEORGE A. SEIB, a citi- Zen of the United States; and resident of 1 tion.

.My present invention relates to paper controlling 1 devices for typewriting machines,

and more especially vto what is commonly known as platen sweep-mechanism for .such machines, the general object of the invention being to provide new and improved.

mechanism of the character specified. By the use of my improvements the paper when first in-serted into the machine may be advanced rapidly to variable predetermined extents and arrested in position for writing the first line; also the paper may be advanced rapidly thereafter a considerable dis. tance from one printing line to another, and when the writing on the sheet has been finishcd the work sheet may be fed quickly out of the machine. In Short, all of the usual functions of a platen sweep mechanism may be performed and the distances through which the paper` or work sheet may thus be swept or fed by the use of my invention are not restricted to the extent of some prior` constructions but may equal practically a distance corresponding to a complete revolution of the platen.

on a plane indicated by the dotted line m Tothe above and other' ends which will hereinafter appear, my present invention consists in the features of construction,` combinations of devices and arrangements of parts hereinafter described and particularly pointed out in the claims.

In the accompanying drawings which illus-v trate the preferred form of my invention applied to a No. 10 Remington front-strike typewriting machine, l Figure 1 is a fragmentary end view of the carriage of said machine showing my invention applied thereto,'some parts being vsectioned away for the sake of clearness.

Fig. 2 is a fragmentary front elevation, partly in section, of said' carriage.`

Fig. 3 is a transverse sectional View, taken in Fig. 2 and looking in the direction of the arrows at said line.

- in the No. 10 Remington machine.

F 4 is a longitudinal sectional View, taken'substantially on the plane indicated by Patented Apr. 2, 191e.

the dotted line y y in Fig. l and looking in the direction of the arrows at said line.

Fig. 5 is a fragmentary view corresponding to- Fig. 1 but showing the parts as they appear after the platen sweep mechanism has beenoper'ated and prior to its return to normal position.

Fig. 6 is a detail View partly in section.

Fig. 7 is a perspective detail view show# i ing parts separated or spread.

Figs. 8 and 9 are operating views.

Referring first to Figs. l, 2 and 4, the `topl- I plate 1 rofthe'main frame of the machin? supports pairs of upstanding lugs or standards at its front and rear, one of the two.

rear standards 2 being shown. The standards have fixed to them grooved guide' rails, the rear guide rail 3'coperating through anti-friction lballs 4 'with .the grooved rear bar 5 of a carriage truck. Said truck further comprises end bars 6 which connect the rear bar with a similarly grooved front bar .that also cooperates through anti-friction balls with the front trackway, the front bar and trackway with the coperating balls being omitted however from the drawings; In addition to the truck the carriage of the ma chine further comprises a platen frame that is mounted on the truck, said frame including end bars 7 that are connected bv devices comprising a cross bar 8. Mounted on the carriage is a cylindrical platen 9 provided with platen heads and stub shafts or spindles, the right=hand head 10 'and spindle 11 being shown. Surrounding the spindle 11 is a hollow shaft 12 that has Xed to its left-hand end a flange 13 provided with a lateral .-pin 13SL that engages in a hole in a ratchet wheel 14 that is normally connected with the platen in the manner that is usual Coperative with the ratchet wheel 14 isthe usual detent roller 15 and line spacing mechanism space distances. Said mechanism comprises a pawl 16 pivoted at 17 to an arm or carrier 18 that is pivotally mounted concentrically loo with the platen, the pawlbeing connected by vdevices comprising a link 19y with a ,line

spacing handle (not shown) The usual reg- "spring, the pawl tooth 42a clickingoverthe I teeth of the ratchet wheel 44 during this returning movement so that the platen will not be a'eeted thereby, said platen being retained in the position to which it has been advanced, because of the friction exerted by the detent on the ratchet wheel 14 as well as by the coperation of the feed rollers 21 Vand 22 and the pressure roller 23 with the surface of the laten.

"In order to increase the extent to which the platen may be turned or swept by the operation of the sweeper or lever 32, devices are provided comprising a rotary member or plate 47 which is loosely mounted on the hub 38"1 just to the right of the pinion 38. Said 7 forth under the shouldered portion of the 1. -side 0f its pivot from the pawl tooth 42",

ymounted on the hub 38a member 47. The stop screw 33, the head of said screw confining the member to a path vof movement contiguous to the outer face of the segmental gear 35. Fixed to the member 47 and eX- tending` laterally rightward therefrom is a screw stop or pin 51`which also serves as a pivot for a tail of the pawl has an outwardly bent portion 53 into which is hooked a coiled spring 54, the other end whereof is anchored to a pin 55 on the member 47. The spring 54 tends to maintain the tooth'52a of the pawl 52 engaged with a set of ratchet teeth 56 that are formed o'n and comprise part of an adjustable stop member 5,7 that is loosely to the right of the member 57 further comprises a radially extending stop arm 58 that is provided with a lateral stop pin 59 that is substantially at the same radial distance from the center of rotation as is the traveling scr'ew stop 51. This stop 59 iis adapted for coperation with the outer face ofthe pawl tooth 42a while the screw stop 51 1s adapted for coperation with the back of the pawl member 42 at the opposite and said back portion indicated at 42b being '1 curved or shaped to coperate 4with the 4ist screw stop 51 in such a waythat when the 60 l, 1n Fig.

overcome the pawl 42a 4 vvheel 44. 'mounted pawl member 52 provide an adparts are in normal positloiras illustrated 1 .the .effect of the screw pawl spring 43 and hold the out of engagement with the ratchet The ratchet 56 -and the spring pawl device or member 52. ,The .v

stop is to.

justable connection between Athe stop member 57 and the member 47 which afl'ords anz adjustment between the two stops 51 and. 59.

lleferringto Fig. Brit will be apparent that by using the stop 59 asl a handle the stop member 57 may be turned leftward, separating the stops 51 and 5,9 to a greater eX- tent than they appear in Fig. 3. After the relation of the stops has been properly adjusted the pawl tooth 52a, coperating with the ratchet teeth 56, will maintain the two stops set in adjustable relationship, con` necting the stop member57 with the member 47 so that these two members in effect will rotate back and forth during the operation of the platen sweep mechanism as asingle member or unit. number of different relationships in which the two stops 51 and 59 may be set correspond to the number of teeth in the ratchet wheel 56.

In Fig. 3 the stop devices 51 and 59 arel It will be clear that the cated to the platen will be diminished to a greater or less extent. illustrated in Fig. 8. Subsequently in resetting.;v the stop 59 to increase the platen turningl movement or throw, the pawl 52 will be swung back against the spring 54 'and into contactv withthe stop pin 60, thus freeing the ratchet 56 from the pawl tooth 52 and permitting the stop member or carrier 57 to be turned to bring the stop 59 clear to the stop 51. Thereafter, freeing the member 52 will cause the pawl tooth 52n to reengage with the ratchet wheel 56, thus iu- Such a setting is terlocking the stop carrier 57 and the meml ber 47 in a new set relationship with respect to the stop pins 59 and 51. These pins 51 and 59 not only act as stops but as afurther function of actuating devices as will hereinafter appear.

Referring to the operation of the platen sweep mechanism, the parts comprising this mechanism will normally be maintained'as in Figs. 1, 2 and 3, leaving the platen free to be turned by the regular line spacing mechanism independently of the platen sweep mechanism. The normal position of the parts of the platen sweep mechanism is determined primarily by the fixed or linal stop 33 which stop 50 under the compulsion of the spring 36. Saidv spring acts on the lever 32, segmental gear 35,'pinion 38 andarm 0r driven member 40, which through the face or curved portion 42b of the driven member or traveling stop 42, acting against the pin or `back stop 51, transmits pressure to the member 47 -of which the sub-stop 50 is a part. As-

- forward into the machine,

l carrier y in Fig. 1.

vwill be obsfrved f As a result of this operation oi' the or it may be advanced continuously or fed out of the machine, the finger piece 34 is pulled Afor'- ward by the operator thus turning the lever on its ulcrum, causmgthe gear 354 to turn the pinion 33 and arm or carrier 40. This arm will be swung or driven toward the rear carrying with it the pawl member 42. As the pawl member separates from the back stop 5l the pawl spring 43 will become elective, forcing the pawl tooth 42a into-engagement with the ratchet wheel 44. After such engagement further turning movement of the arm 404 will be transmitted to the ratchet 'wheel and through it to the platen as has been described. This Aturning move ment will continue independently of 'the member 47 until the pawl or driven recur ber42 has been turned iar enough to bring it into contactive engagement Iwith the pin or front traveling stop 59, after which turning movement of the carrier or arm 40 will be transmitted to the member 47, orcing said member to turn ahead 'until the limiu of movement is reached Aas determined by engagement of the subsl'op 49 with the final stop 33, at which time the parts will be in the relationship illustrated in Fig. 5. lt that a limited extent et movementv of the sweep, approximately a quarter turn, operates to turnthe platen through a substantially complete rotation. platen sweep mechanism the platen will be turned vcontinuously through a distance practically equal to a complete revolution. 0n releasing the finger piece 3-lthe lever will swi back` under the impulse of the restoring spring 36, this movement being transmitted through the gear and pinion to -the 40. The return movement may be independent or the member 4T until the pawl member 42 engages with the pin 5l atter' which said member 47 will be forced to turn ahead of the carrier 4G, the movement oli the parts continuing until the stop 50 engages with the lixed stop 33. Since the spring '.36

is stronger than the springY i3 the linal arrest.

will not take place unlil the pawl tooth 4Q has been forced out ol the ratchet wheel 44, leaving the parts in the position illustrated For the pui-prise of making as clear as posslble an understanding ot lhe operation o my improvements, reference may be had to the operating views, Figs. 8 and i), in which stop the cycle. of operations may be followed without confusion since the mechanism apart from the stops proper is substantially omit ted from these figures. ln Figs. 8 and 9 the front or forward stop 59 is set several notches. 'farther forward away from 'the back 51 than in Fig., l, this altered arrangement being clearly illustrated in Fig. 7. At the beginning of the operations as shown by -device 33 and the the arresting-device 50 is full lines in Fig. 8,

iinal stop or arresting in contact with the As the hand driven mem-` contact with the back stop 51. sweep is pulled forward, the ber 42 will separate from the and will turn around the axis ot the platen as a center, the plate 47 being 'adapted to remain quiescent until the inclined face o tooth 452a o the driven member is broughtinto contact with the front stop 59 as shown by dotted lines in Fig. 8. 'The Vposition of the sweep 32 when this contactv takes place is illustrated in dotted lines in said figure. Thereafter, as the swee 32 is pulled forward from the dotted lme positionl in Fig. S to the full line position of Fig. 9, the plate 47 will be forced ahead, turning rearward or toward the right in Fig. 8, the parts being finally arrested by the arresting means 49, 33, as illustrated in liig. 9. The return movements of the parts to normal position fwill take place as has heretofore been described. f l 1 lt will be observed that by my present invention there is provided novel platen sweep :mechanism ir typcwriting machines or the like comprising a hand sweep and devices for controlling the operation of said sweep; that the controlling devices comprise in combination apair of traveling stops, in the present instance 51 and 59, and a third stop, 42 in the present instance, that travels between said pair of stops; that said lpa-ir of traveling stops are relatively adjustable so that the distance that the third stop moves in traveling 'troni one o'f'lhese to the other may he varied, (for instance, the distance said third stop travels when the parts are set as in Fig. l is greater than when the parts are set as in Fig. 3;) that they traveling stop or drivenmember, in the present instance 42, is rotatable from a rest position, in which it engages with one/ot the other travelingstops, to a. position in which it engages with another of the traveling stops during` the operation of the platen sweep mechanism, the rotation be-A in ,fr reversed during the return'of the platen sweep mechanism, said driven member or traveling stop thus playing between the other two traveling stops; `that arresting means -for these traveling stops comprise the hooks or sub-stops 49 and 50 and the final stop 33, said final stop being intermediate the sub-stops; and that these hooks are on a movable or oscillating carrier, inthe present desire to secure driven member 42 is 1n back stop 51 f the be made without de# i between said pair of stops, the sweep mech-` ,anism being normally disconnected from the yplaten so that the platen may be turned both ,backward and forward to any desired exilicluding the sweep proper or handle.

2. In platen sweep mechanism for a type- Vwriting machine or the like, controlling devices comprising a pair of traveling stops that are relatively adjustable in respect to each other, and a third traveling stop that travels between said pair of'stops, the sweep mechanism being normally disconnected from the platen so that the platen may be turned both backward and forward to any desired extent 4without affecting the sweep mechanism including the sweep proper or handle.

3. In a typewriting machine, the combination with a platen and step-by-step line spacing devices, of other means for turning t e platen comprising a hand sweep and devices for controlling the operation of said hand sweep comprising a pair of traveling stops and a third stop that travels between said pair of stops, a limited movementof the hand sweep operating to turn the platen through a substantially complete revolution.

4. 'In a typewriting machine, the combination with a platen and step-by-step linespacing devices, of means forturning the platen a greater continuous distance than said line spacing devices are capable of turning it, said means comprising a hand sweep and devices for controlling the operation of said hand sweep including a pair of traveling stops and a third stop that travels between said pair of stops, one of said pair of stops being adjustable, a limited movement of the hand sweep operating to turn the platen through la substantially complete revolution. A

5. In platen'sweep mechanism for a typewriting machine, the combination of a ,posi-v tively driven stop, a handle, means intermediate said stop and said handle whereby said stop is positively driven, a backv stop, and a forward stop for said positively driven stop, said forward stop being mountedfto travel simultaneously with said positively driven stop for part of its movement and finally acting to arrest said positively driven sto 6I.) In platen sweep mechanism for a typewriting machine, the combination of a positively driven stop, a handle, gearing between Said stop and said handle, a back stop, a front stop for said positively driven stop that travels part of the way with said positively driven stop, and means 'for arresting said front stop sothat it may in turn finally arrest said driven stop. z j

7. In platen sweep mechanism for a type writing machine, the combination of a positively driven stop, a handle, motion-Innitin tent without aHecting the sweep mechanism` the driven stop, and relatively liXed means' for arresting said forward stopso that it may in turn finally arrest, said driven stop.

8. In platen sweep mechanism for a type- .writing machine, the combination of a back stop and a front stop, said'stops being rela'- tively adjustable angularly and both being mounted for limited rotation, a driven member. playing between said stops, a handle, and means intermediate said handle and said driven member whereby said member is postively driven when said handle is actu# ate 9. In platen sweep mechanism for a typewriting machine, the combination of a back stop and a front stop, said stops being relatively adjustable angularly and both being mounted for limited rotation, a driven member playing between said stops, a handle, means .intermediate said driven member and said handle whereby said driven member is positively driven when said handle is actuated, and relatively stationary arrest ing devices for said front and back stops.

10. In platen sweep mechanism for a typewriting machine, the combination of a driven member, a handle, means intermediate said member and said handle whereby Asaid member is moved when said handle is actuated, and two cooperating stops, said stops hav ing at the beginning of the throw or sweep a certain angular relationship relatively to said driven member, this angular relationship increasing. as the driven member is moved so that at the end of the throw it is greatest.

11. In a typewritingmachine, -the combination of a platen, avpair of traveling stops, a third stop normally disconnected from said platen, and means for causing said third stop to travel between said pair of stops, said means comprising a .hand sweep and devices controlled by said hand sweep for connecting said third stop with the platen.

sol

12. In a typewriting machine, the comvie "viz

.a -front stop for said driven stop that travelsl part of the way therewith, means tor arresting said front stop so that it may in turn finally arrest said driven stop, and ,means for connecting said platen -to travel. with v said driven stop.

lei. In a typewriting machine, the combination of a rotary platen, a driven inember co-axial with said platen, disconnectible connecting devices between the driven memn ber and said platen, a hand sweep separate from said member tor driving said meinber and for causing said devices to connect it with said platen, ,a stop for said driven member, and arresting means, said driven member being` rotatable from 'its rest position toward said stop, which stop advances until finally arrested by said arresting means 'and thereafter stops said driven member.

15. ln platen sweep mechanism i'or a typewritingl machine or the like, the combination of a positively driven stop, a handle, means intermediate said stop and said handle whereby said. stop is positively driven and arresting` means :tor said positively ldriven stop comprising two sub-stops, one at least of said sub-stops being,` movable.

16. ln platen sweep mechanism iior a typewriting machine or the like, the combination of a positively driven stop, a handle, means intermediate said stop and said handle .whereby said stop is positively driven, and arrestingmeans -tor said positively driven stop comprising a iinal stop to cooperate therewith at each end of the throw of the platen.

17. in platen sweep mechanism for a type writing machine or the like, controlling devices comprising in combination movable carrier, a sub-stop thereon, a front stop mounted independently ci? but adjiistably connected to said movable carrier, andv a iinal stop to which said siib-stop is adapted.

1.8. ln platen sweep mechanism for a typewriting machine or the like, controlling de vices comprising in combination a vmovable carrier, a slib-stop thereon, a front stop supported independently or' said carrier, pawl and ratchet devices for adinstably connectingsaid 'liront stop. to said carrier, and a iinfl -stop to which said sub-stop is adapted.

i9. 'ln platen sweep mechanism for a type-r writingvmachine or the like, controlling devices`comprising in combination an oso-il latory sector having iixed .stops at its en s, a movable stop having pawl and ratchet connections with said sector and a final stop with which said subestop is adapted to cou operate. v

.20. in platen sweep mechanism for a typeV ysaid back stop and two movable sub-stops andv typwriting machine or neonata writing` machine or the like, vcontrolling devices comprising in combination, a gear driven arm, a pawl carried by said arm, ya ratchet wheel with which .said pawl con operates, said ratchet wheel being connected with the platen, a movable carrier, aback stop connected therewith, a front stop con nected to said carrier, and a nal stop for arresting said carrier in both. directions of its movement, said pawl cooperating with said iront stop.

i 2l. ln platen sweep mechanism for .a type writing machine or the like, controlling deu vices comprising in combination a suo-lirontstop, a sub-baclrstOp, a movable carrier :for said sub-stops, a'linal stop intermediate said sub-stops, a -gear driven arm, a pawl con nected therewith, and a ratchet wheel conn nested with the platen,4 said pawl coperatingwith said ratchetwlicel and with. said sub-stops. 1

"22. In platen sweep mechanism for a' typewriting machine or the like, controlling devices comprising in combination a driven stop, four traveling stops, and a iixed iinal stop, said driven stop playing between two of said traveling stops, saidixed stop being arranged between the other two travelcling stops, and a ii'xed stop arranged between. said second-pair. .i

in platen sweep mechanism for a type Yrating machine or the like, controlling devices comprising in combination a driven stop and two traveling relatively movable andrei "ely adjnstable 'iront and ii' el; stops, said driven iop front and back stops, a mov said tront and baclr stops, stops spaced apart on said carrierl .inal fixed stop with which d pair able stops cooperate. f

Q5. ln platen sweep mechanism for a typewriting machine or the like, controlling' devices comprisin in combination siibstops, an oscillating carrier .for said slib# stops, back and 'front stops movale with said carrier during its escillations,v and a iixed stop arranged. between said sob-stops.

:26. iin platen sweep mechanism ier he like, the comM bination of a spring returned handle provided. with a gear sector, a pinion driven byl said sect/or, a pawl carrying arm movable by said pinion in both, strokes of said handle, a stop carrier, and stops on said carrier, said pawl with said stops.

a pair ci movable jj lili) 27. In a typewriting machine, the combination of a rotary platen, a pinion normally disconnected from the platen, a hand operated rack meshing with said for connecting the platen with the pinion to cause the pinion to rotate the platen when the rack is operated, and means interposed between said pinion and said hand operated means for increasing the motion of the platen.

28. In a typewriting machine, the combination of a rotary platen,`a pinion normally disconnected from the platen, a hand operated rack meshing with said pinion, means for connecting the platen with the pinion to cause the pinion to rotate the platen when the rack is operated, and means interposed between said pinion and said hand operated means for increasing the motion received by the platen, said last recited means comprising a device free to rotate concentrically with the platen and having a motion limited by a stationary stop.

29. In a typewriting machine, the combi-y nation of a rotary-platen, a pinion normally disconnected from the platen, a hand opersaid pinion, means for connecting the platen with the pinion to cause the pinion to rotate the platen when the rack is operated, and means for increasing the motion received by the platen comprising a freely rotatable device controlled in its movements by said connecting means.

30. In a typewriting machine, the combination of a rotary platen, a pinion normally disconnected from the platen, a hand operated rack meshing with said pinion, means for connecting the platen with the pinion to cause the pinion to rotate the platen when the rack is operated, and means interposed. between said pinion and said hand operated means for increasing the motion received by the platen, said last recited means comprising a. freely rotatable device controlled in its movements by said first recited means,

said freely rotatable device being provided with an adjustable means for variablycontrolling the extent of rotary movement that said freely rotatable device receives from said first i'ccitedmeans.

f 31. -In a typcwriting machine, the combination with a platen and step-by-step line spacing devices therefor; of platen sweep mechanism comprising a hand operated gear, apinion with which said gear constantly meshes, said pinion being concentric with the platen lint rotatable independently thereof, a rotary carrier rigid with said pinion, normally ineffective pawlv and rah-het devices for connecting said carrier automatically with said A,platen when the carrerstarts to turn, a freely rotatable del vice operative by said carrier, and fixed stops for limiting the movement of said freely rotatable device..

inion means A P i between said carrier and the platen, said connections being normally disconnected and devices for limiting 'and turning movement of the carrier and thus determine the eXL tent of sweeping movement orthrow communicated tothe platen, said devices comprising a member rotatable concentrically' with said carrier and provided with two sets of stops, one setcoperative with the carrier, and the other stop. a y

33. In a typewriting machine, the combination with a platen and step-by-step line spacing mechanism therefor; of platen sweep mechanism comprising a hand operated rotary carrier, separable, connections between said carrier and the' platen, said connections being normally disconnected, and devices for limiting the turning movement' of the carrier and-thus determine the extent of sweeping movement or throw cominunicated to the platen, said devices comprising a rotary member operative by said carrier and -provided with stops that cooperate with the fixed stop to limit the eX- tent of the platen sweeping movement.

34. In a. typewriting macliine,the combination with a platen and `,step-by-step line spacing mechanism therefor; of platen sweep mechanism comprising a hand-operated rotary carrier, separable connections between said carrier and the' connections being normally disconnected, and devices for ment ofthe carrier and thus determine the extent of sweeping movement or throw communicated to the platen, said devices comprising a rotary member operative-by said carrier and provided with stops that Ic'ooperate with the fixed stop to limit the eX- tent'of the platen sweeping movement, and means for varyingthe extent of movement which said rotary member mayreceive from said carrier. f

35. In' a typewriting machine, the combination with a platen spacing mechanism l sweep mechanism clomprisin a hand Operated rotary carrier, 4separale connections between said carrier and the platen, said connections being normally disconnected, and devices for limiting the turning movement of the carrier and thus determine the cooperative with a fixed therefor; of platen platen, said limiting the turning moveextent of sweeping movement or throw com.

a meme@ which said rotmgry member may receive from me?, and Sta-'te of New York, this h dmy sald Carner, Saud last recxted means comof JanuayA. D. '1917.

prsng a stop on said membe,`:md a sec- GEORGE A. SEB. ond stop adwstable relatively to the :first Witnesscsz 5 mentioned stop on said member. MARY C. G LEASON,

Signed at Dion, n the county of' Hezck- CLARENCE M. SLAWSON. 

